baber/WOPTO huggingface dataset:
Patent GB-1248137-A (GB)
Title: Contact for a semiconductor component
IPC: H01L23/532
Filed: 1969-12-18
Abstract: 1,248,137. Contacts on semi-conductor devices. ITT INDUSTRIES Inc. 18 Dec., 1969 [30 Dec., 1968], No. 61709/69. Heading H1K. [Also in Division C7] Ohmic contact is made to an oxide masked silicon body by a process at the start of which nickel is evaporated on to the masked substrate to a thickness of 0.1-0.2 Á at a substrate temperature of 100-150‹ C. Except at the desired contact area nickel is then removed with aqueous nitric acid. The coated substrate is placed in a high vacuum and heated at 500- 600‹ C. for 15-20 minutes to partially diffuse nickel into the silicon. The substrate temperature is lowered to ca. 450‹ C. and a 0À1 Á layer of chromium evaporated on overall. A 1.0 Á layer of gold is evaporated overall at a substrate temperature of ca. 280‹ C. Except at the desired contact area gold and chromium are chemically removed with the following respective solutions used at 50‹ C.: aqueous iodine potassium iodide; aqueous cerie sulphate/nitric acid. A gold lead wire may be attached to the contact by thermo-compression bonding. The contacts may be used with diodes and transistors.
Patent GB-1255030-A (GB)
Title: Method of sealing vacuum vessels
Inventor: KREBS DIETER
IPC: H01J9/38
Filed: 1968-12-31
Abstract: 1,255,030. Electric discharge tubes. NARVA VEB. 31 Dec., 1968, No. 61912/68. Heading H1D. [Also in Division C1] In a method of sealing vacuum vessels, e.g. envelopes of gas discharge devices, electric lamps or electronic tubes, the vessel is disposed in a container and evacuated therein, a heated surface 5 is then urged against the end face of a glass pump tube projection of the vessel to soften and seal it and the pressure in the container is then increased whereby the softened glass is caused to compress radially with respect to the pump tube axis to complete the seal. After this the heated surface is withdrawn from the fusion seal along the pump tube axis. Heated surface 5 may form part of an electrically heated metal laminar heater.
Patent GB-739680-A (GB)
IPC: B64D17/38
Abstract: 739,680. Hooks. CAPEWELL MANUFACTURING CO. April 21, 1954 [July 7, 1953], No. 11526/54. Class 89(2). [Also in Group XXXIII] A snap hook, e.g. for parachute harness, comprises a body 10, Fig. 4, with a hook portion 16 and a shank 18, Fig. 1, e.g. to receive a strap 20, the body being slotted at 34, 38 to receive a release member 80 pivoted at 14 and pivotally carrying an element 68 to close the hook entrance when member 80 is positioned as shown in Fig. 4. The member 80 is urged to this position by spring 98 and has upstanding finger plates 84 engaging a spring-pressed ball 46 and a domed screw 50 on opposite sides of the shank. When the member 80 is moved against the spring to the position shown in Fig. 6, element 68 is. withdrawn from the entrance and portion 58 of the member ejects the load-attaching ring 63. The element 68 is pivoted to the member 80 at 70 and has a projection 70a urged against a stop 72 by a spring 74. Thus the element, when closing the entrance, can be turned against the spring to pass ring 63 into the hook.
Patent GB-742078-A (GB)
Abstract: 742,078. Electrical measuring instruments. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 31, 1954 [May 6, 1953], No. 12633/53. Class 37. Relates to fluxmeter-type galvanometers having heavy electromagnetic damping and negligible controlling torque. The invention provides an instrument in which the moving element is a horizontal conductor supported on resilient legs which are on the point of buckling. In the drawings a bar magnet 8 is upstanding inside a rectangular yoke 3 and the horizontal part of an inverted U-shaped wire 14 moves in the uniform vertical-field gap between the underside of top yoke pieces 4 and pole face 9 of bar magnet 8. The wire 14 is 50 S.W.G. copper and the height of the legs is 2.4 inches and the horizontal part is about 1.25 inches long and the legs are almost buckling so that when the wire 14 is deflected by a current passing through it the tendency for it to return to its original position is very slight. Transparent plastic sheets 10 are clamped to the front and rear faces of the magnetic yoke 3 by.tie rods 11, 12. The wire legs 14 are secured to tie rods 12; wire hoops 14 also secured to tie rods 12 are positioned to limit the deflection of the wire 14. The wire 14 moves in relation to a scale 16 on the pole face 9 and is viewed through a window 6 which bridges an air gap separating the yoke pieces 4 and the latter are bevelled at 5 adjacent this air gap. Current is led in and out through the tie rods 12. The yoke 3 is mounted on a triangular base 1 comprising levelling screws 2.
Patent GB-2002294-A (GB)
Title: Decorative acrylic blocks
IPC: B44C3/04
Filed: 1978-08-11
Abstract: Decorative acrylic blocks are formed by producing fracture planes inside a transparent or translucent acrylic block by introducing an organic solvent optionally containing a dye into a hole formed in a fully polymerised block. The hole may be formed during moulding of the block or, preferably, after polymerisation is complete in order to introduce extra strain. The hole wall may be lightly tapped. The fracture planes may be subsequently developed by heat treatment, which also removes internal strain in the finished article.
Patent GB-2006025-A (GB)
Title: Golf club grip
IPC: A63B53/14
Filed: 1978-10-18
Abstract: A golf club grip is characterised in that its bore is in two longitudinally- extending portions F, G which are angularly offset each relative to the other so that when a straight golf club shaft is fully homed in the bore, the grip bore will be straightened sufficiently to render the outer surface of that portion of the grip to be held by the hands of the user selectively directed relative to the sweet-spot of the face of the club to which the grip is applied. <IMAGE>
Patent GB-2008889-A (GB)
Title: Blooming control for a solid state image pickup device
IPC: H04N5/359
Filed: 1978-10-30
Abstract: A solid state image pickup device includes a matrix array of pn- junction type photo-diodes formed in a monolithic semiconductor substrate, vertical switching FET's of MOS type each connected to the associated photo diode for reading out electric charge stored therein, a vertical shift register for supplying control pulses to gate terminals of the vertical switching MOS FET's, vertical output conductors each for connecting together those of the vertical switching MOS FET's arrayed in the same rows, horizontal switching MOS FET's for horizontal read out connected to the other end of the vertical output conductors, a horizontal shift register for supplying control pulses to gate terminals of the horizontal switching MOS FET's and a horizontal output conductor connecting in common the outputs of the horizontal switching MOS FET's. The image pickup device further comprises means for varying the potential at the grounded terminal of the vertical shift register during the horizontal blanking period, and a group of MOS type FET switches connected to the other ends of the vertical output conductors, whereby surplus electric charge at the photo-diodes, if any, is removed through the MOS FET switches during the horizontal blanking period.
Patent GB-2030652-A (GB)
Title: Rotary Positive-displacement Fluid-machines
IPC: F01C9/00
Filed: 1978-12-04
Abstract: An oscillating compressed-air motor includes a shaft 1 carrying a pair of radial vanes on which the air acts to partially rotate the shaft. The vanes are located in a cylinder 2 which is furnished with fixed partitions 5. At the end of each shaft movement an air-operated brake stops the shaft. The brake includes an inflatable rubber sleeve 4 acting on the inner surface of a cup-shaped member 3 secured to the shaft. The motor may drive a windscreen wiper. <IMAGE>
Patent GB-2012680-A (GB)
Title: Keyboard actuator
IPC: B41J7/00
Filed: 1979-02-19
Abstract: A typewriter-actuating apparatus to enable disabled persons to operate a typewriter, comprises a finger 36 pivotally mounted on orthogonally movable block 35 and having a free end engageable with a typewriter keys K. Electric motors 29, 32 move the frame 20 supporting the block 35 and the block, respectively, to position the free end of the finger above a selected typewriter key. A solenoid 33 mounted on the block moves the finger 36 so it engages and depresses the selected key. The motors and the solenoid may be controlled by a joystick, a suck/blow unit or pressure pads. <IMAGE>
Patent GB-2019141-A (GB)
Title: Drive circuit for magnetic bubble device
IPC: G11C11/14
Filed: 1979-04-03
Abstract: A drive circuit for a magnetic bubble device has a series circuit with first 32 and second 33 switches connected in parallel with a series circuit having third 34 and fourth 35 switches. The switches carry currents 37, 38, 39 and 40 respectively from a D.C. power source connected across the parallel circuit. A coil 31 is connected between the junction of the first 32 and second 33 switches and the junction of the third 34 and fourth 35 switches. The switches are controlled by a control circuit (not shown) which causes a current 41 with an alternating waveform to flow in the coil 31. The control circuit forms a region of the waveform, when the current passes through zero, which has zero gradient. This region prevents the build up of drive current in the coil which would cause a displacement in the magnetic fields in the bubble device, and hence unsatisfactory operation. <IMAGE>
Patent GB-2021738-A (GB)
Title: An electromagnetic pressure regulating valve
IPC: F16K31/06
Filed: 1979-04-23
Abstract: In an electromagnetic pressure regulating valve, particularly for regulating the switching pressure in automatic motor vehicle transmissions, the armature 20 is rigidly mounted on a rod 21 the end of which remote from the armature 20 forms a valve control slide 21'. The latter is guided in a valve housing portion 32 which is made integral with the magnet yoke 24. A return spring 27, which acts on the armature 20, is arranged between the magnet yoke 24 and the armature 20. By means of the pressure regulating valve, the main transmission pressure may be conveyed from an inlet duct 47 to transmission clutches via interconnected ducts 44 and 48, the free end surface of the control slide 21' being exposed to the clutch supply pressure in the duct 44. <IMAGE>
Patent GB-2028811-A (GB)
Title: Phenoxy butanes and derivatives
IPC: C07C213/00
Filed: 1979-08-03
Abstract: The invention provides 1,4-diphenoxybutanes, e.g. 1-(3,4- dichlorophenoxy)-4-[( alpha , alpha , alpha -trifluoro -m-tolyl)oxy]-butane. The compounds bear at least one trifluoromethyl in one of both phenoxy substituents and are useful as herbicides.
Patent GB-2030772-A (GB)
Title: Electro-mechanical interrupter with variable on/off ratio
IPC: H01H19/62
Filed: 1979-08-23
Abstract: A timing device suitable for use in a microwave oven, for example to defrost food by a series of repeated bursts of microwave energy, comprises a microswitch 20 cyclically operated by a movable member 17 mounted on a pivoted lever 14. Timing cam 13 moves the lever 14 and member 17 back and forth in a fixed cycle to operate the switch and start and end the bursts of energy. A manually adjustable cam on shaft 22 can move the member 17 up and down on lever 14 so that the distance between surface 18, which is not parallel to lever 14, and the switch may be varied. This adjustment alters the time in the fixed cycle at which the microswitch is operated and therefore the lengths of the repeated bursts of microwave energy. More than one microswitch 20 may be provided for conjoint actuation by member 17. <IMAGE>
Patent GB-2058440-A (GB)
Title: Improvements in or Relating to Galvanic Cells
IPC: H01M2/06
Filed: 1979-09-12
Abstract: A sealed galvanic cell has a tubular casing (11) sealed at one end with a plastics closure member (13) covered by an outer conducting cap (15). The closure member (13) is moulded with an integral plug (26) joined to the remainder of the closure member by a thin plastics web (25) extending along the length of the tube and capable of rupturing and thereby releasing the plug (26) in the event of excess gas pressure in the cell. <IMAGE>
Patent GB-2042831-A (GB)
Title: Supply circuit for flash discharge lamp
IPC: H05B41/34
Filed: 1979-12-03
Abstract: A circuit arrangement for a toner fixing flash discharge lamp (7) charging circuit comprises a detector (8) for sensing a voltage drop across a charging capacitor (6) indicative of the occurrence of a flash discharge. A control signal (o, p) is generated when a voltage drop occurs to start a multivibrator (9) which actuates a circuit (5) controlling a thyristor (3) to switch off the power supply (1) to the charging circuit and so prevent glow discharge. In a known system (Fig. 1, not shown) the thyristor (3) is operated by the switch (12) which is used to trigger a flash discharge so that erroneous operation of the triggering mechanism, for example due to the effect of external noise on thyristors in the triggering circuit, causes a flash discharge without the power supply switched off, resulting in a glow discharge and inhibiting repeated regular flash discharges. <IMAGE>
Patent GB-2044366-A (GB)
Title: Hydraulic Systems for Actuators
IPC: F15B13/02
Filed: 1980-03-25
Abstract: A hydraulic system comprises a hydraulic actuator (20) having opposed openings (A, B) each adapted to alternately function as inlets and outlets for moving the element (21) of the actuator in opposite directions and a variable displacement pump system (22) with load-sensing control for supplying fluid to said actuator. A meter-in valve (27) is provided to which the fluid from the pump system is supplied and a pilot controller (23) alternately supplies fluid at pilot pressure to the meter-in valve for controlling the direction and displacement of movement of the meter-in valve and the direction and velocity of the actuator. A pair of service passages (32, 33) extends from the meter-in valve to the respective openings of the actuator and a meter-out valve (34, 35) is associated with each service passage to the actuator for controlling the flow out of the actuator when that service passage to the actuator does not have pressure fluid from the pump applied thereto. Each meter-out valve is pilot- operated by the pilot pressure from the controller (23).
Patent GB-2052594-A (GB)
Title: Metal panelled ceiling
IPC: E04B9/26
Filed: 1980-03-28
Abstract: A plurality of parallel beams (10), support a plurality of metal panels (24, 25, 26) which form a metal ceiling. The panel (25) has upturned side portions (28, 29) of generally sinuous form which co-operate with recesses formed at regular intervals in the beams. Each panel with such side portions may be removed from the ceiling independently of the other panels. The panel connector (36 - not shown in Figure 1) connects adjacent panels on different beams and may be used to provide additional support to the metal ceiling. <IMAGE>
Patent GB-2077896-A (GB)
Title: Improvements in actuating systems
IPC: B66F3/24
Filed: 1980-05-03
Abstract: The present invention relates to actuating systems using a sealed liquefied gas container in which the gas is typically carbon dioxide. Means are provided for releasing the gas in response to various signals and using it to power a jack for moving a load. The jack shown is supplied with gas from a liquefied gas container having a piercing member for releasing the gas into a pipe (34). The gas enters an annular chamber 37 and causes relative movement between a piston (32) and a cylinder (30). This movement causes links (26), which are pivoted to the cylinder (30) and to the piston rod (33), to lift a load- engaging bridge piece (24) away from a base (25). <IMAGE>
Patent GB-2081505-A (GB)
Title: Hall effect device
IPC: H01L43/14
Filed: 1980-08-05
Abstract: A Hall effect device comprises a thin substrate-free epitaxially grown semiconductor body (11) mounted in a magnetically permeable, e.g. ferrite, housing (15, 16). The layer is grown on a substrate (12) which, after device processing is complete, is removed by a selective etching process. <IMAGE>
Patent GB-2058819-A (GB)
Title: Emulsion composition for controlling allergens
IPC: C09K3/30
Filed: 1980-09-08
Abstract: A composition and method for controlling house dust allergens involves the periodic coating of various host substrates such as fabrics with a pressurized stable emulsion coating composition comprising water, an organic hydrophobic control agent having a flash point between 167 DEG  and 260 DEG C that preferentially wets, bonds and/or reacts with various allergens present in house dust, an emulsifier, and a propellant.
Patent GB-2059646-A (GB)
Title: Microcomputer control for supplemental heating in a heat pump
IPC: F25B49/02
Filed: 1980-09-25
Abstract: An air conditioning system comprising a heat pump, includes an automatic control arrangement which is responsive to actual and desired space temperature and outdoor temperature signals to control the heat pump compressor (14) speed. In the heating mode when the outdoor temperature drops below a predetermined minimum value, the control arrangement causes the compressor to operate in excess of its normal rated speed, e.g. up to 150% thereof, in order to provide supplemental heating. If the heat pump output is still inadequate, electric heaters may be cumulatively energized. The control arrangement comprises a microprocessor (38). <IMAGE>
Patent GB-2061633-A (GB)
Title: Lock mechanism for an electric wire connector
IPC: H01R13/627
Filed: 1980-10-14
Abstract: A lock mechanism for an electric wire connector whose pair of connector housings (1, 3) having a lock arm (2) and a notch (4), respectively, which are engaged with each other, comprises a supplementary yoke (6) extending from the housing (3) having the notch (4) for preventing an undue deformation of the lock arm (2) so as to avoid an accidental disengagement of the housings (1, 3) when an unintentional tensile force acts upon them.
Patent GB-2065290-A (GB)
Title: Forced flow heat exchanger using heat pipes
IPC: F04D29/58
Filed: 1980-10-20
Abstract: Heat transfer apparatus comprises a housing 1 subdivided by a partition 5 into two separate flow spaces for the passage of first and second heat exchange fluids, e.g. fresh and waste air, a plurality of heat pipes 6 extending through said partition 5 with one end of each pipe located in the first fluid flow space and the other end located in the second fluid flow space, and a motor driven impeller arranged to pass the first and second fluids through the respective flow spaces and over the ends of said heat pipes 6. <IMAGE>
Patent GB-2066782-A (GB)
Title: Folding machine
IPC: B65H45/16
Filed: 1980-12-18
Abstract: A folding machine for three-fold and four-fold folding comprises a basic unit composed of at least one folding mechanism (1) and an additional folding unit (22) connected downstream of the basic unit and composed of paired folding mechanisms (15, 17) which can be arranged in various positions relative to the basic unit. In the additional folding unit (22), the folding rollers of the folding mechanisms (16, 17), for example two knife folding mechanisms or one knife and one packet folding mechanism, are so arranged in different planes one above the other that one roller pair has a horizontal position and the other roller pair a vertical position, and the roller pairs are situated over a common area which in plan is not substantially greater in size than that for one roller pair. <IMAGE>
Patent GB-2068038-A (GB)
Title: Method and apparatus for producing underpinning members beneath foundations or making sealing diaphragms
IPC: E02D27/48
Filed: 1981-01-20
Abstract: A method of making underpinning members (11, 12) or producing sealing diaphragms, in which a hardenable liquid material with or without a gaseous additive is injected under high pressure into the subsoil in the form of an intermittently compressed jet through an injection tube (2) provided at its lower end with a nozzle carrier (1) having nozzles (3). <IMAGE>
Patent GB-2071816-A (GB)
Title: Flow regulator for hydraulic circuits
IPC: G05D7/06
Filed: 1981-02-03
Abstract: A flow regulator comprises a mobile slide valve 9 arranged to open and close a first passage between a feeding duct 13, which connects a source of pressurized fluid to the regulator, and a utilisation duct 14, which connects the regulator itself to the user, and a second passage between the said feeding duct 13 and a discharge duct 15, and is provided with means 36, 37 in said ducts 14, 15, respectively arranged to keep substantially constant both the pressure jump between a first zone 40 along the said feeding duct 13 and a second zone 41 along the said utilisation duct 14 and the pressure jump between the said second zone 41 and a third zone 42 along the discharge duct, in order to prevent the control of the flow from being affected by fluid pressure variations between a zone situated upstream and a zone situated downstream of the regulator. The position of the slide valve 9 is determined by the degree of opening of a solenoid valve 35. <IMAGE>
Patent GB-2082992-A (GB)
Title: Mounting for a Vehicle Towing Hitch
IPC: B60D1/46
Filed: 1981-04-30
Abstract: Guide 10, comprising back plate 11, flanges 13, and end plates 15 can be secured by bolts (not shown) through holes 14 to a towing vehicle (not shown). A positioning member in the form of a threaded rod 40 is retained in the guide 10 by nuts 41 located in resilient bushes. Located in the guide 10 by two opposite edges of flanges 48 and by runners 49 is a shoe 46 having holes 28 for mounting a towing hitch (not shown) thereto. The shoe 46 has a clamping arrangement 102 comprising a jaw 50 capable of positive engagement with the rod 40. Loosening the clamping arrangement 102 allows for adjustment of the shoe and towing hitch to any desired vertical position. Once in position the clamping arrangement is tightened, which brings the jaw 50 into positive engagement with the rod and forces the flanges 48 into engagement with the rod 40. The clamping arrangement 102 can be replaced by a nut threadedly engaged with the rod 40 so that rotation of the rod 40 raises or lowers the shoe 46. <IMAGE>
Patent GB-2088671-A (GB)
Title: Facsimile image processing system
IPC: G06T1/00
Filed: 1981-10-19
Abstract: An image processing system has a reader which reads out an image of an original, a page memory which stores image information of the original in the form of electric signals, a disk memory which stores part or all of the image information in the disk memory and also stores image processing information, an image processing section, a digitizer for the operator to input the image processing information, a CRT which displays input information or corrections in conversation language, a DMA controller, and a printer. A part only of the original may be selected as being of interest. Data relating to the area of interest is then stored in the disk memory. The image processing system of the invention is capable of DMA transfer without the intermediacy of a CPU. Fewer addresses are required for readout of the image information from the memory, and high speed image processing is achieved. <IMAGE>